Anybody know how to loosen the tension on the yfz thumb throttle? It's pretty stiff and I usually go out for long periods of time when I ride, and I'm not looking to lose a thumb.

 

im just trying to help, but can you simply loosen the screw at the bottom of the throttle, where it pivits from?

 

Get a thumb extender... that'll give you more leverage

 

The price you pay for a high performance 39MM FCR [img]i/expressions/face-icon-small-smile.gif[/img]

 

lol yup

 

lube the cable with some teflon spray, like tri flow. but with that carb, it's gonna be stiff......popeye! hehe yer gonna have popeye arm soon enuf. the price you pay for performance. I havent heard of a trick yet but when i do, i'll be sure to pass it on.

[img]i/expressions/face-icon-small-happy.gif[/img]

 

well if you lose a thumb just rub some sand on it ..... it'll be alright.[img]i/expressions/face-icon-small-smile.gif[/img]

 

do not get a thumb extender, it will make it much worse. the problem with they yfz isn't the tension, it the is length of the throw and the angle. the best thing to do is to put a throttle housing and lever from a 400ex on, it is a shorter lever and has a better angle in relation to the bars.

 

I wonder if a lighter tension carb spring from another aplication would work....